for (MojoExecution mojoExecution : mojoExecutions) {
            MojoDescriptor mojoDescriptor = mojoExecution.getMojoDescriptor();

            scopesToResolve.addAll(toScopes(mojoDescriptor.getDependencyResolutionRequired()));

            scopesToCollect.addAll(toScopes(mojoDescriptor.getDependencyCollectionRequired()));
        }
    }

    private Collection<String> toScopes(String classpath) {

        List<Restriction> copiedRestrictions = null;

        if (restrictions != null) {
            copiedRestrictions = new ArrayList<>();

            if (!restrictions.isEmpty()) {
                copiedRestrictions.addAll(restrictions);
            }
        }

        return new VersionRange(recommendedVersion, copiedRestrictions);
    }

    /**
     * <p>
     * Create a version range from a string representation

    private <T> Collection<T> getExtensionComponents(Collection<MavenProject> projects, Class<T> role) {
        Collection<T> foundComponents = new LinkedHashSet<>();
        foundComponents.addAll(lookup.lookupList(role));
        foundComponents.addAll(getProjectScopedExtensionComponents(projects, role));
        return foundComponents;
    }

                    artifacts = directArtifacts;
                } else {
                    List<Artifact> allArtifacts = new ArrayList<>();
                    allArtifacts.addAll(artifacts);
                    allArtifacts.addAll(directArtifacts);

                    Map<String, Artifact> mergedArtifacts = new LinkedHashMap<>();
                    for (Artifact artifact : allArtifacts) {

        this.pomRepositories = new ArrayList<>();
        this.externalRepositories = Collections.unmodifiableList(new ArrayList<>(repositories));
        this.repositories = new ArrayList<>();
        this.repositories.addAll(externalRepositories);
        this.repositoryMerging = repositoryMerging;
        this.repositoryIds = new HashSet<>();
        this.modelPool = modelPool;

            List<String> tgt = target.getModules();
            Set<String> excludes = new LinkedHashSet<>(tgt);
            List<String> merged = new ArrayList<>(tgt.size() + src.size());
            merged.addAll(tgt);
            for (int i = 0, n = tgt.size(); i < n; i++) {
                indices.add(i);
            }
            for (int i = 0, n = src.size(); i < n; i++) {
                String s = src.get(i);

            org.apache.maven.artifact.Artifact artifact = toArtifact(node.getDependency());

            List<String> nodeTrail = new ArrayList<>(trail.size() + 1);
            nodeTrail.addAll(trail);
            nodeTrail.add(artifact.getId());

            if (filter == null || filter.accept(node, Collections.emptyList())) {
                artifact.setDependencyTrail(nodeTrail);

                 * loaded into a dedicated realm which is invisible to plugins (MNG-2749).
                 */
                publicArtifacts.addAll(artifacts);
            }
        }

        if (logger.isDebugEnabled()) {
            logger.debug("Extension realms for project " + model.getId() + ": " + extensionRealms);
        }

            return new SetWithResolutionResult(null, new LinkedHashSet<>());
        }

        scopesToCollect = new HashSet<>(scopesToCollect);
        scopesToCollect.addAll(scopesToResolve);

        DependencyFilter collectionFilter = new ScopeDependencyFilter(null, negate(scopesToCollect));
        DependencyFilter resolutionFilter = new ScopeDependencyFilter(null, negate(scopesToResolve));

            for (RemoteRepository repository : request.getRepositories()) {
                if (repository.isRepositoryManager()) {
                    repoMan = true;
                    repositories.addAll(repository.getMirroredRepositories());
                } else {
                    repositories.add(repository);
                }
            }
            context = repoMan ? request.getRequestContext() : "";